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1st Semester Vocab

1st Semester Vocab by Naiha

Flask A flask is a bottle, usually of glass, having a rounded body and a narrow neck, used especially in laboratory experimentation to hold large volumes of liquid.
Test tube A test tube is a thin glass tube closed at one end, used to hold small amounts of material for laboratory testing or experiments.
Petri Dish A petri dish is a shallow, circular, transparent dish with a flat lid, used for the culture of microorganisms.
Period A period is a row of elements in the periodic table arranged by atomic number, sharing the same number of energy levels.
Group A group is a column of elements in the periodic table having the same number of valence electrons, and similar chemical properties; also called chemical families.
Nucleus A nucleus is in the center of an atom and is made up of protons and neutrons.
Proton A proton is a positively-charged particle located in the nucleus of an atom.
Electron An electron is a negatively-charged particle found outside the nucleus of an atom, in electron cloud.
Speed Speed is the distance traveled by an object in a given amount of time.
Velocity Velocity is an object's speed and direction at a given instant.
Acceleration Acceleration is the change in a an object's speed or direction (its velocity) over time.
Force Force is a push or pull.
Balanced Force A balanced force occurs when the total of all forces on an object equals zero and the object's motion does not change.
Unbalanced Force An unbalanced force occurs when the net force of an object does not equal zero; results in the object changing motion.
Direction Direction is the course along which something or someone moves.
Newton's 1st Law An object at rest stays at rest and an object in motion stays in motion until acted upon by an unbalanced force.
Newton's 2nd Law The acceleration of an object depends upon the size of the mass and the force of the object.
Newton's 3rd Law For every action(or force), there is an equal and opposite reaction(or force).
Graduated Cylinder A graduated cylinder is a measuring instrument for accurately measuring fluid volume; a glass container whose sides are marked with or divided into amounts.
Hand lens A hand lens is a hand-held magnifying glass.
Created by: D0506943